Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface structure of segmented poly(ether urethanes) and poly(ether urethane ureas) with various perfluoro chain extenders. An x-ray photoelectron spectroscopic investigationSung Chul Yoon and Buddy D. RatnerCite this: Macromolecules 1986, 19, 4, 1068–1079Publication Date (P…
We recently reported the partial characterization of a new human collagen termed Type VII. This molecule is distinctive among the collagen family in that it contains three identical subunit alpha chains within a triple helical domain 424 nm in length. The molecule contains three identical alpha chains which are geneti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetection of hazardous gases and vapors: pattern recognition analysis of data from an electrochemical sensor arrayJoseph R. Stetter, Peter C. Jurs, and Susan L. RoseCite this: Anal. Chem. 1986, 58, 4, 860–866Publication Date (Print):April 1, 1986Publication History Published…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and ESR detection of a ground-state nonet hydrocarbon as a model for one-dimensional organic ferromagnetsYoshio. Teki, Takeji. Takui, Koichi. Itoh, Hiizu. Iwamura, and Kazumasa. KobayashiCite this: J. Am. Chem. Soc. 1986, 108, 9, 2147–2156Publication Date (Print)…
We study the properties of one-dimensional quasilattices numerically and analytically. The geometrical properties of general one-dimensional quasilattices are discussed. The Ising model on these lattices is studied by a decimation transformation: The critical temperature and critical exponents do not differ from those…
Abstract As investigated by optical and electron microscopy, the observed morphology of the meltblended polyethylene/polystyrene pair unambiguously supports the interfacial activity of poly(hydrogenated butadiene‐ b ‐styrene) copolymers. The phase size is significantly reduced, the interfacial adhesion is dramatically…
A first step in the quantification of receptor density in the living human brain is the measurement of the binding of a labeled ligand to the receptor in question. In the present study, we determined the rate of binding of 11C-labeled N-methylspiperone (NMSP) to the D2 dopamine receptor in 11 normal volunteers, using…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrder parameter in polymer liquid crystals. 1. Poly(p-benzamide) in N,N-dimethylacetamide/lithium chlorideM. Luisa Sartirana, Enrico Marsano, Estalla Bianchi, and Alberto CiferriCite this: Macromolecules 1986, 19, 4, 1176–1180Publication Date (Print):April 1, 1986Publication…
Abstract Actual procedures for the preparation of black phosphorus single crystals by a bismuth flux method have been explored and the details are described. The anisotropy and the temperature dependence of the electrical conductivity and the Raman scattering spectra of the crystals obtained by the above-method have b…
BO-PP films have fairly different morphologies to those of non-oriented PP films. These morphological differences were found to originate from the orientation of the crystalline and amorphous phases. The orientation of the amorphous phase causes a pronounced decrease observed both in ionic conduction and in dielectric…
A model has been developed for the prediction of NOx emissions from combustion turbines. Thermal, prompt, and fuel NO are all treated and are all assumed to be formed at a stoichiometric equivalence ratio. Prompt and fuel NO are assumed to be fast with respect to thermal NO and establish a finite concentration of NO a…
A comparative study was made between the moisture absorption behaviours of sisal and jute fibre composites in an epoxy matrix under immersion conditions. Sisal fibres, in spite of possessing more compact structure than jute fibres, exhibited higher moisture absorp tion levels in their composite form, contrary to expec…
Hydration of CaAl 2 O 4 (CA) was studied by calorimetry, analysis of the liquid phase, measurement of the combined water, and electron microscopy. During the induction period, the solution remains almost unchanged and is equilibrated temporarily with both superficially intrusion‐hydrated CA particles and Al(OH) 3 gel…
Poly‐1,4‐dimethoxybenzene has been synthesized by the anodic oxidation of 1,4‐dimethoxybenzene in aprotic electrolytes. The black polymer is a doped semiconductor as formed. This material is converted to polymeric (oligomeric) hydroquinone and quinone. The polymers are insoluble in all common solvents except for the p…
ADVERTISEMENT RETURN TO ISSUEArticleNEXTEXAFS evidence for direct metal-metal bonding in reduced rhodium/titania catalystsStanley Sakellson, Martin McMillan, and Gary L. HallerCite this: J. Phys. Chem. 1986, 90, 9, 1733–1736Publication Date (Print):April 1, 1986Publication History Published online1 May 2002Published i…
Abstract Multivariate statistical analyses of geochemical, mineralogical, and cation-exchange capacity (CEC) data from a Venezuelan oil well were used to construct a model which relates elemental concentrations to mineral abundances. An r-mode factor analysis showed that most of the variance could be accounted for by…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFactors influencing Jahn-Teller distortions in six-coordinate copper(II) and low-spin nickel(II) complexesRobert J. Deeth and Michael A. HitchmanCite this: Inorg. Chem. 1986, 25, 8, 1225–1233Publication Date (Print):April 1, 1986Publication History Published online1 May 2002…
The equilibrium segregation A (dissolved) = A (segregated), where A = C, Si, Sn, N, P, O, S … is studied for binary systems Fe-A in the stability range of the α-solid solution using surface-analytical methods. On the surfaces ordered structures were observed by LEED and surface concentrations were determined by AES –…
Abstract The FeCl 3 test is applied to an increasing extent for examining the resistance to pitting and crevice corrosion. Two methods having proved their value are described, the chemical properties of the FeCl 3 solution with regard to hydrolysis, pH and redox potential behaviour at various test temperatures are set…
The electronic and photoelectrochemical properties of the n‐type spinel oxides consisting of Zn‐Ti‐Fe are studied. The composition systems that give the single phase of the spinel structure are and . The conductivities of the former oxides are governed by the hopping mechanism between Fe 2+ and Fe 3+ at the octahedral…